tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 87adedeba51a822533649b143232418b9e26d08b
commit: fd9c663b9ad67dedfc9a3fd3429ddd3e83782b4d bpf: minimal support for programs hooked into netfilter framework
date: 10 months ago
config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240301/[email protected]/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project edd4aee4dd9b5b98b2576a6f783e4086173d902a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240301/[email protected]/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
In file included from net/netfilter/nf_bpf_link.c:2:
In file included from include/linux/bpf.h:21:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1970:
include/linux/vmstat.h:516:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
516 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from net/netfilter/nf_bpf_link.c:2:
include/linux/bpf.h:706:48: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
706 | ARG_PTR_TO_MAP_VALUE_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_MAP_VALUE,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~
include/linux/bpf.h:707:43: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
707 | ARG_PTR_TO_MEM_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_MEM,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
include/linux/bpf.h:708:43: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
708 | ARG_PTR_TO_CTX_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_CTX,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
include/linux/bpf.h:709:45: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
709 | ARG_PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_SOCKET,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
include/linux/bpf.h:710:44: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
710 | ARG_PTR_TO_STACK_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_STACK,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~
include/linux/bpf.h:711:45: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
711 | ARG_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | ARG_PTR_TO_BTF_ID,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
include/linux/bpf.h:715:38: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
715 | ARG_PTR_TO_UNINIT_MEM = MEM_UNINIT | ARG_PTR_TO_MEM,
| ~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
include/linux/bpf.h:717:45: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_arg_type') [-Wenum-enum-conversion]
717 | ARG_PTR_TO_FIXED_SIZE_MEM = MEM_FIXED_SIZE | ARG_PTR_TO_MEM,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
include/linux/bpf.h:740:48: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
740 | RET_PTR_TO_MAP_VALUE_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_MAP_VALUE,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~
include/linux/bpf.h:741:45: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
741 | RET_PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCKET,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
include/linux/bpf.h:742:47: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
742 | RET_PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_TCP_SOCK,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~
include/linux/bpf.h:743:50: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
743 | RET_PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCK_COMMON,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
include/linux/bpf.h:745:49: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
745 | RET_PTR_TO_DYNPTR_MEM_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_MEM,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
include/linux/bpf.h:746:45: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
746 | RET_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_BTF_ID,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
include/linux/bpf.h:747:43: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_return_type') [-Wenum-enum-conversion]
747 | RET_PTR_TO_BTF_ID_TRUSTED = PTR_TRUSTED | RET_PTR_TO_BTF_ID,
| ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
include/linux/bpf.h:858:44: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_reg_type') [-Wenum-enum-conversion]
858 | PTR_TO_MAP_VALUE_OR_NULL = PTR_MAYBE_NULL | PTR_TO_MAP_VALUE,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~
include/linux/bpf.h:859:42: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_reg_type') [-Wenum-enum-conversion]
859 | PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | PTR_TO_SOCKET,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~
include/linux/bpf.h:860:46: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_reg_type') [-Wenum-enum-conversion]
860 | PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | PTR_TO_SOCK_COMMON,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~
include/linux/bpf.h:861:44: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_reg_type') [-Wenum-enum-conversion]
861 | PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | PTR_TO_TCP_SOCK,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~
include/linux/bpf.h:862:42: warning: bitwise operation between different enumeration types ('enum bpf_type_flag' and 'enum bpf_reg_type') [-Wenum-enum-conversion]
862 | PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | PTR_TO_BTF_ID,
| ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~
>> net/netfilter/nf_bpf_link.c:186:33: warning: bitwise operation between different enumeration types ('enum bpf_reg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion]
186 | info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
| ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~
22 warnings generated.
vim +186 net/netfilter/nf_bpf_link.c
170
171 static bool nf_ptr_to_btf_id(struct bpf_insn_access_aux *info, const char *name)
172 {
173 struct btf *btf;
174 s32 type_id;
175
176 btf = bpf_get_btf_vmlinux();
177 if (IS_ERR_OR_NULL(btf))
178 return false;
179
180 type_id = btf_find_by_name_kind(btf, name, BTF_KIND_STRUCT);
181 if (WARN_ON_ONCE(type_id < 0))
182 return false;
183
184 info->btf = btf;
185 info->btf_id = type_id;
> 186 info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
187 return true;
188 }
189
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Hi all,
On Fri, Mar 01, 2024 at 08:57:56AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 87adedeba51a822533649b143232418b9e26d08b
> commit: fd9c663b9ad67dedfc9a3fd3429ddd3e83782b4d bpf: minimal support for programs hooked into netfilter framework
> date: 10 months ago
> config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240301/[email protected]/config)
> compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project edd4aee4dd9b5b98b2576a6f783e4086173d902a)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240301/[email protected]/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <[email protected]>
> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
>
> All warnings (new ones prefixed by >>):
<snip>
While this change may introduce an instance of this warning, it is
actually a change on the clang side that causes this and I am still
looking for input on what to do about it:
https://github.com/ClangBuiltLinux/linux/issues/2002
I think this report can just be ignored for now. The Intel folks may
want to consider sending -Wenum-enum-conversion and
-Wenum-compare-conditional reports to our mailing list only until we can
sort this out. Sorry for the noise.
Cheers,
Nathan
> >> net/netfilter/nf_bpf_link.c:186:33: warning: bitwise operation between different enumeration types ('enum bpf_reg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion]
> 186 | info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
> | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~
> 22 warnings generated.
>
>
> vim +186 net/netfilter/nf_bpf_link.c
>
> 170
> 171 static bool nf_ptr_to_btf_id(struct bpf_insn_access_aux *info, const char *name)
> 172 {
> 173 struct btf *btf;
> 174 s32 type_id;
> 175
> 176 btf = bpf_get_btf_vmlinux();
> 177 if (IS_ERR_OR_NULL(btf))
> 178 return false;
> 179
> 180 type_id = btf_find_by_name_kind(btf, name, BTF_KIND_STRUCT);
> 181 if (WARN_ON_ONCE(type_id < 0))
> 182 return false;
> 183
> 184 info->btf = btf;
> 185 info->btf_id = type_id;
> > 186 info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
> 187 return true;
> 188 }
> 189
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>
On Thu, Feb 29, 2024 at 08:50:59PM -0700, Nathan Chancellor wrote:
> Hi all,
>
> On Fri, Mar 01, 2024 at 08:57:56AM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 87adedeba51a822533649b143232418b9e26d08b
> > commit: fd9c663b9ad67dedfc9a3fd3429ddd3e83782b4d bpf: minimal support for programs hooked into netfilter framework
> > date: 10 months ago
> > config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240301/[email protected]/config)
> > compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project edd4aee4dd9b5b98b2576a6f783e4086173d902a)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240301/[email protected]/reproduce)
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <[email protected]>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
> >
> > All warnings (new ones prefixed by >>):
>
> <snip>
>
> While this change may introduce an instance of this warning, it is
> actually a change on the clang side that causes this and I am still
> looking for input on what to do about it:
>
> https://github.com/ClangBuiltLinux/linux/issues/2002
>
> I think this report can just be ignored for now. The Intel folks may
> want to consider sending -Wenum-enum-conversion and
> -Wenum-compare-conditional reports to our mailing list only until we can
Got it Nathan, we have updated the bot to send these 2 types reports
to the mailing list only.
> sort this out. Sorry for the noise.
>
> Cheers,
> Nathan
>
> > >> net/netfilter/nf_bpf_link.c:186:33: warning: bitwise operation between different enumeration types ('enum bpf_reg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion]
> > 186 | info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
> > | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~
> > 22 warnings generated.
> >
> >
> > vim +186 net/netfilter/nf_bpf_link.c
> >
> > 170
> > 171 static bool nf_ptr_to_btf_id(struct bpf_insn_access_aux *info, const char *name)
> > 172 {
> > 173 struct btf *btf;
> > 174 s32 type_id;
> > 175
> > 176 btf = bpf_get_btf_vmlinux();
> > 177 if (IS_ERR_OR_NULL(btf))
> > 178 return false;
> > 179
> > 180 type_id = btf_find_by_name_kind(btf, name, BTF_KIND_STRUCT);
> > 181 if (WARN_ON_ONCE(type_id < 0))
> > 182 return false;
> > 183
> > 184 info->btf = btf;
> > 185 info->btf_id = type_id;
> > > 186 info->reg_type = PTR_TO_BTF_ID | PTR_TRUSTED;
> > 187 return true;
> > 188 }
> > 189
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
> >
>